Shingeki no Kyojin: The Final Season DVD/BD specials. They are chibi parody shorts; 2 video was included on the DVD/BDs. Each video contained 8 stories (essentially chibi parody short episode 60–75) which continued the chibi parody story from the previous chibi parody specials included on the DVD/BDs of the previous seasons.
Watch Attack On Titan: The Final Season Specials episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.